Swinging sliding window-sash.



L. BOFIPJD. SWINGING SLIDING WINDOW SASH'. APPLICATION FILED JUNE 1, 1908'.

91 8,270. Patented Apr. 13, 1909.

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' awucm for T15 9 5 -ECQMVi'S Bojrd q v-blimeoaco Sliding'W' indow-Sas es, of which thefollow- LoUI-s BOIFIRFD, or NEW YORK,'N. Y.

swmeme supine w'mnow-sasn To all whom it may concern:

Be it known that I, LoUIsBoFIRn, a-citizen of the United States, residing at New York city, in the county OtNewYork and State of New York, have invented certain new and useful Im rovements' in Swing'in ing is a specification.

This invention relates to sliding swinging window sashes and has for its object the improvement therein of certain details whereby the swinging sash may be more easily manipulated and whereby the swinging ofthe sash may" not only be'more easily effected, but may be done without the wear and tear incident to the manipulation of such as they are now constructed. I

With these objects in view and 'inview of others, which'will late rappear, the invention consists in the structure of parts and in-the f combination thereof substantially as herein shown, described and claimed.

1 In the accompanying drawing, which forms a part of this specification, Figure 1 represents in elevation a two sash window 8%1111) ed with my improvement; Fig. 2 is a si e'e evation of a window frame, in which are mounted two sashesequippedwith my improvement, said sashes being shown swun into horizontal position'and the upper sash s id down near the'lowerone; Fig. 3 is a detail view on an' enlarged scale disclosing features of-myinv'ention; Fig. 4 is a detail view on a still larger scale showing my imroved'pivot'and' the manner in which it is lbcated in place Fig. 5 re resents in side view the handle of the pivo "j Fig. 6 an end view of the same Fig. 7 an edge view of'one of the journal plates; and Fig. 8 represents,

on an enlarged scale, a section through one side of the sash and the adjacent stile.

The principal feature of this improvement in sliding 'swmg sash resides in the mechanism by which provision is made'for easing off the: sash from the sliding stiles before attempting to swing the sash. This is an essential improvement because in most swinging sash heretofore constructed, the swinging of the sash caused a shearing action between the grooves and cooperating beads in the joints between the sash and stiles. This shearing action rapidly wears away these parts and soon causes a loose fit between the sash and the stiles and also produces frayed edges on the sash. In the present inventionthese objections are overcome by the form Specification r Letters Patent Application filed June 1, 1908. 1 Serial no.14aa1e1.

pivoted.

Patented A ril-13, 1909.

13, indicates the sash cords for'the upper sash, the same being connected in any suitable way to the stiles 11 and; 1-2.

The joint b'etween the stiles and the sash is preferablyi made as indicated in Fig. 6, wherein the sash is shown as grooved and'the stile is shown as having thereon a single bead fitting said groove. The stiles are ressed ;toward' the sash by suitable. springs ocated between them and the jambs. In the drawing these springs are indicated at 14 as simple plate springs. The pivot, on which the sash swings is indicated at 15 and is provided with a lever or handle 16. In the preferred manner for mounting the pivot a journal plate, as 17, is let into the stile and a like plate 18 is letinto the sash at the inner edge thereof. A hole is bored through the sashof a larger diameter than the pivot so that a spring, as 19, may be located about the pivot between the plates 17 and 18. The outer end of the pivot 15 is u set or riveted against the outer edge of the p ate 17. The spring 19 tends to force the plate 17 and its stile 12 away from the plate 18 and its sash. The handle 16 of the pivot may be provided with any suitable gaging the s'ash in the same manner as in Fig. 4, thereby holding the stile to the sash.

The springs 1 9 are made just enough stronger than the springs 14 to provide for creating a sufiicient clearance between the sash and,

stiles, that is, to disengage the beads from the grooves when the cams are swung away from the sash thereby permitting of easy swinging of the sash and preventing the wearing away of the edges of the grooves against the beads as the sash is swung. This mode of unitin the stiles with the sash and of providing a c earance between them also avoids the extra trouble and expense incident to )rotecting the meeting edges between sti es and sash with metallic strips that has been necessary in many forms of swinging sashes heretofore constructed. The cam or wedging ivots, as those described may be called, aso provide for making a positively. tight joint between the stiles and the sashes when the latter are in vertical position.

The invention claimed is 1. he combination with a sash, of sliding stiles at the sides thereof, the meeting edges of said sash and stiles being fitted together by a bead and groove joint, a journal plate let into the face of each stile midway of its length, a journal plate let into eachside rail of the sash midway of its length and at the inner edge thereof, a horizontal pivot located in each pair of said journal plates and pro vided with a head at the outer edge of the journal plate in its respective stile and with a cam handle at right angles to the pivot at the inner edge of the journal'plate in its respective side frail for engagement with said plate for the purpose set forth, and a spring ocated about each pivot between the journal plates, substantially as and for the purpose set forth. g j

2. A pivoting fixture for sliding swinging window sashes, consisting of a pair of journal plates, a pivot mounted therein and headed at one end against the outermost of said.

plates and rovidedat its opposite end with acam han le at the inner edge of the other journal plate, and a spiral spring located about the pivot between the inner edges of said plates, said handle being integral with the pivot and at right angle-thereto and the cam surface thereof being adapted to engage the edge of the adjacent journal plate and thereby draw said plates toward one another in opposition tosaid spring, substantially as and for the purpose set forth. I

- LOUIS BOFI RD.

Witnesses: I r

JOHN BAUER,

R. J. FLEMING. 

